How-To Geek


ASCII, the American Standard Code for Information Interchange, is a character encoding scheme based on the English alphabet that encodes 128 characters (numbers, upper and lower case letters, as well symbols and control codes), into 7-bit machine readable binary integers.

When referring to numbers, letters, or symbols in the ASCII system, there is both a binary identifier and a glyph (the human readable symbol). In the case of the lowercase “a” for example, “a” is the glyph associated with binary code 110 0001.

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